Oracle Data Source in Enterprise Gateway

[wonga]

I'm having trouble adding an Oracle database as a data source in the enterprise gateway. The error message I get is below:

Unable to connect: We encountered an error while trying to connect to SERVER_NAME. Details: "Cannot connect to the mashup data source. See error details for more information."Hide details

Activity ID:	03e50d90-a4ee-4a5a-96c5-7dfe93a5ef4f
Request ID:	522f1644-0873-dd0c-719c-9d06e3972ddf
Cluster URI:	https://wabi-us-north-central-redirect.analysis.windows.net
Status code:	400
Error Code:	DM_GWPipeline_Gateway_MashupDataAccessError
Time:	Wed May 04 2016 14:48:55 GMT-0400 (Eastern Daylight Time)
Version:	13.0.1100.480

Underlying error code:	-2147467259
Underlying error message:	The provider being used is deprecated: 'System.Data.OracleClient requires Oracle client software version 8.1.7 or greater.'. Please visit https://go.microsoft.com/fwlink/p/?LinkID=272376 to install the offical provider.
DM_ErrorDetailNameCode_UnderlyingHResult:	-2147467259
Microsoft.Data.Mashup.ValueError.Reason:	DataSource.Error

I can confirm that I have the latest ODAC components installed on both the client machine and the server where the enterprise gateway is installed. I have also tested connecting to the data source through Power BI Desktop and it works just fine.

Any ideas? Thanks.

[dimazaid]

hi @wonga,
Could you try using your own account to use the Gateway? and refresh again. 
If that works, you should reinstall the oracle components in a way that ensures the service account for the Gateway has access to them.

[wonga · Accepted solution]

Hi @dimazaid, I managed to solve this by using the Oracle service name found in tnsnames.ora instead of using the full hostname.

So instead of putting "HOSTNAME" in the "Server" field, all I had to do was put in the service name. For reference, the syntax of a tnsnames.ora entry is:

SERVICENAME =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TYPE)(HOST = HOSTNAME)(PORT = PORTNUM))

    (CONNECT_DATA =

      (SERVICE_NAME = SERVICENAME)

   )

  )

Thanks, I forgot to mark this one as solved!